2 ===============================================================================
4 If you are in the mood to upgrade autoconf, you should:
6 1. Consider not upgrading.
7 2. No really, this is a hassle, you don't want to do it.
8 3. Get the new version of autoconf and put it in <SRC>
9 4. configure/build/install autoconf with --prefix=<PFX>
10 5. Run autoupdate on all the m4 macros in llvm/autoconf/m4
11 6. Run autoupdate on llvm/autoconf/configure.ac
12 7. Regenerate configure script with AutoRegen.sh
13 8. If there are any warnings from AutoRegen.sh, fix them and go to step 7.